MIC2826 Datasheet, PDF (19/27 Pages) Micrel Semiconductor – Quad Output PMIC with HyperLight Load™ DCDC, three LDOs, and I2C Control

Micrel, Inc.
MIC2826
Status Register (01h):
The Status Register allows the state of each supply to
be interrogated, supports flags that are set when fault
conditions occur, and controls the use of the MIC2826’s
interrupt pin.
D7
D6
D5
D4
D3
D2
D1
D0
Name
Reserved
INT-EN
UVLO
TSD
L3-Status L2-Status L1-Status DC-Status
Access
RO
R/W
Echo
Echo reset
RO
RO
RO
RO
reset
POR
0
0
0
0
0
0
0
0
Value
Data
0
0: Interrupt 0: Normal 0: Normal 0 = LDO3 0 = LDO2 0 = LDO1 0 = DC-DC
is disabled
1: DVIN
1: Thermal ^{Not Valid}
Not Valid
Not Valid
Not Valid
1: Interrupt
under-
shutdown 1 = LDO3 1 = LDO2 1 = LDO1 1 = DC-DC
is enabled
voltage
occurred
Valid
Valid
Valid
Valid
occurred
Note:
“Echo reset” bits remain set until cleared. Clearing these bits is accomplished by writing a one to that bit location (“echo the one to reset”). If the fault
condition (UVLO or thermal shutdown) persists after the echo reset, the corresponding Status Register bit will be set high again immediately.
July 2009
19
M9999-071609-A